| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Aureau, Damien
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Interface defect formation for atomic layer deposition of SnO2 on metal halide perovskitescitations
- 2024In situ evaluation of the strontium vandate oxide reactivity by NAP-XPS
- 2023Formation and Etching of the Insulating Sr‐Rich V 5+ Phase at the Metallic SrVO 3 Surface Revealed by Operando XAS Spectroscopy Characterizationscitations
- 2023Formation and Etching of the Insulating Sr‐Rich V<sup>5+</sup> Phase at the Metallic SrVO<sub>3</sub> Surface Revealed by Operando XAS Spectroscopy Characterizationscitations
- 2022(Invited, Digital Presentation) Outstanding Contributions of Liquid Ammonia on III-V Semiconductors (Photo)-Electrochemistry
- 2022Oxide thin film depth profiling: interest and limitations of argon sputtering for photoemission spectroscopy
- 2021XPS monitoring of SrVO3 thin films from demixing to air ageing: The asset of treatment in watercitations
- 2021Highly Transparent and Conductive Indium‐Free Vanadates Crystallized at Reduced Temperature on Glass Using a 2D Transparent Nanosheet Seed Layercitations
- 2020Three dimensional resistance mapping of self-organized Sr3V2O8 nanorods on metallic perovskite SrVO3 matrixcitations
- 2020Transfer of Epitaxial SrTiO 3 Nanothick Layers Using Water-Soluble Sacrificial Perovskite Oxidescitations
- 2019Cu(InGa)Se 2 Solar Cell Efficiency Enhancement Using a Yb-Doped SnO x Photon Converting Layercitations
- 2019Evidence of Reversible Oxidation at CuInSe2 Grain Boundaries
- 2018The Evaluation of the Perturbations Induced By Ionic Bombardment on Surfaces: A Challengefor Interfacial Electrochemistry
- 2018Tuning the electronic properties of LaAlO 3 / SrTiO 3 interfaces by irradiating the LaAlO 3 surface with low-energy cluster ion beamscitations
- 2017The Role of Oxygen in the Degradation of Methylammonium Lead Trihalide Perovskite Photoactive Layers
- 2016Enhanced Depth Profiling of Perovskite Oxide: Low Defect Levels Induced in SrTiO 3 by Argon Cluster Sputteringcitations
- 2016Förster resonance energy transfer between individual semiconductor nanocrystals and an InP filmcitations
- 2015Water adsorption on TiO2 surfaces probed by soft X-ray spectroscopies: bulk materials vs. isolated nanoparticlescitations
Places of action
| Organizations | Location | People |
|---|
conferencepaper
The Role of Oxygen in the Degradation of Methylammonium Lead Trihalide Perovskite Photoactive Layers
Abstract
Perovskite materials have already proven their ability to reach photo-electric power conversion efficiencies higher than 22% in appropriate devices. If their instability against time could be solved, they could quickly compete with silicon since they benefit from low-cost manufacturing processes. Our work is dedicated to this stability study using the benefit of X-ray Photoelectron Spectroscopy (XPS) as a main tool, and coupled with XRD and SEM-EDX analysis. Using XPS, it is possible to track the surface (10 nm) changes the perovskite undergoes, in terms of both composition and chemical environments, and is therefore efficient towards understanding the first steps of the degradation process. At first, samples of spin-coated thin-film perovskite without capping on the top (glass/ITO/PEDOT:PSS/MAPI), were aged in different conditions (light with air and vacuum respectively), and analyzed using XPS at different times. The figure below presents the survey spectrum obtained for a fresh sample, and shows that all the expected elements can be identified with this spectrometry method. Starting from an initial known composition, the results obtained reveal interesting changes the material undergoes during the ageing. For example, it was observed that both nitrogen and iodine gradually escape the surface, and also, that metallic lead is observed in the final stages of the degradation process. Then, other currently ongoing experiments are designed to highlight the influence of oxygen and light as previously mentioned , but also to disentangle the influence of the bottom layers on the ageing. This will certainly provide other innovative results on the mechanisms governing the perovskite degradation.